Credit Card Payoff Calculator
See how long it takes to pay off your credit card — and how much interest you'll pay.
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Credit card debt is one of the most expensive forms of borrowing. This calculator shows what you'll really pay if you stick to a fixed monthly amount.
n = ln(P / (P − B × r)) / ln(1 + r) B = balance, r = monthly rate, P = monthly payment
Paying the minimum on a $5,000 balance at 22% APR can take over 20 years and cost more in interest than the balance itself.
Worked examples
Use the defaults above as a starting point — then adjust the inputs to match your situation.
- Double-check the units on every input — most errors come from mixing units.
- Round at the end, not in the middle of the formula.
Frequently asked questions
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